Or you can customize the builder with a lot more options:

.withCameraFullScreenMode(false) //Mode of camera preview: FullScreen - 16/9 with horizontal crop, or otherwise 4/3 with screen fit
.withRequestedFps(25.0f) //Fps in preview of picture.
.withSoundEnabled(true) //Enables or disables a sound whenever picture taken or a barcode is scanned
.withAutoFocus(true) //Enables or disables auto focusing on the camera
.withFocusOnTap(true) //Allow focus picture when user tap on screen
.withFlashMode(FlashMode) //Setup default flash mode before open camera
.withFlashListener(Consumer<FlashMode>)//Sets handler when flash changed (for ability to save the last used flash mode in settings)
.withCameraFacingBack(true) //Use the camera facing back or front
.withCameraLockRotate(true) //Lock rotate phone and orientation in camera activity (to avoid recreating view)
.withErrorListener(ex->{showAlert()}) //Possibility to customize fatal exceptions occured
.withMinorErrorHandler(printStackTrace)//Possibility to customize handler of non fatal exceptions
.withCancelListener(Runnable) //Called when back pressed in camera activity or dialog for request permission is cancelled

Flags for picture mode:

.withTakingPictureMode() //Activate takingPicture mode instead of taking barcode (barcode mode is default)
.withPreviewImage(true) //Allow preview image and redo it before it returned
.withPictureListener(Consumer<File>) //Set listener to take picture, file will saved in context.getFilesDir()/photos
.withFacingListener(Consumer<Boolean>) //Sets listener when camera facing changed (for ability to save the last used camera facing in settings)
.withFlipFaceFrontResultImage(false) //Enables or disables flip result image of facing front camera
.withThumbnails(false) //In addition to the photo the thumbnail will be saved too (in context.getFilesDir()/thumbnails)
.withCameraTryFixOrientation(true) //Automatically try to rotate final image by phone sensors
.withImageLargerSide(1200) //Once the picture is taken, if its too big, it automatically resizes by the maximum side
.withSavePhotoToGallery(String) //Once the picture is taken, it automatically saved into phone gallery as well (DCIM directory)
//You need to have WRITE_EXTERNAL_STORAGE and READ_EXTERNAL_STORAGE permissions in your manifest file to use it

Flags for barcode mode:

.withCenterTracker(false) //Enables the default center tracker (white square in screen)
.withResultListener(Consumer<Barcode>) //Called immediately after a barcode was scanned
.withText("Scanning...") //Shows a text message at the top of the barcode scanner
.withTrackerColor(int) //Sets the tracker color used by the barcode scanner (default is "#F44336")
.withCenterTracker(int, int) //Customize center tracker with a custom drawable resource
.withOnly2DScanning() //Setup scan only 2D type of barcodes
.withOnly3DScanning() //Setup scan only 3D type of barcodes
.withOnlyQRCodeScanning() //Setup scan only QR-Code barcodes
.withBarcodeFormats(int) //Bit mask that selects which formats this barcode detector should recognize.

Notice

If you want the library to fully handle requests permissions,
you need to pass onActivityResult and onRequestPermissionsResult to PhotoBarcodeScanner, for example like this: